Common Degu (Octodon degus) lives in andean mountain savanna across South America. It feeds on grass and leaves. Its conservation status is Least Concern.
Fascinating facts about the Common Degu
- A common degu can stretch up to a foot long, between 25.0 and 31.0 cm (9.8-12.2 in), and tip the scales at 170-400 g (6.0-14.1 oz), making it larger than a golden hamster yet still smaller than a fancy rat. This size lets it dig extensive burrows while staying agile enough to sprint across open ground.
- When degus dig together they form "digging chains" that produce burrow systems far larger than any single animal could manage, expanding their home area to roughly 200 m² per social group. This communal engineering is associated with larger groups spending less time on vigilance and more time gathering high-fiber plants.
- A degu's insulin molecule is structurally different from that of most rodents, leaving it extremely vulnerable to diabetes when fed free sugars. Studies note that regular sugar-rich diets trigger diabetes mellitus in this species, a direct result of evolutionary pressure from a natural diet that lacks simple sugars. This makes degus a powerful model for human diabetes research and a warning to owners about sugary pet foods.
- Degus, their retinas hold two cone types, and their urine shines brightly in UV too. Experiments show they can discriminate UV from visible light.
- In laboratory tests, a degu learned to wield a tiny rake to pull out seeds it could not reach, and later began stacking objects from largest to smallest, the first recorded instance of such tool use and object ordering outside apes and birds.
Sources
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At a glance
RangeSouth America
HabitatAndean mountain savanna
DietGrass and leaves
About the Common Degu
In the sun-baked hills of South America, the common degu darts through the underbrush with an air of restless curiosity, its large, dark eyes gleaming with an intelligence that belies its humble stature. As it moves, its soft, grey fur fluffs and ruffles, like the gentle lapping of waves on a still pond, and its tiny paws barely touch the ground, giving the impression of a creature forever poised on the threshold of flight. With a social nature as intricate as the burrow systems it calls home, the degu weaves a complex tapestry of relationships and rituals that are at once fascinating and endearing.
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